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Sept. 22, 1931 F. A. DAY

HEEL BREASTING MACHINE Original Filed 0013. 14, 1929 2 s t s 1 Se t. 22,1931. I F. A. DAY R 18,199

HEEL BREASTING MACHINE Original Filed Oct. 14, 1929 2 Sheets-Sheet 2Fig.3

- nection with feminine the modeling of the wooden seamed Sept. 22, 1931UNITED STATES PATENT orncs FRED AUSTIN DAY, OF OINOINKLTI, OHIO, BIGIOB,I! new: ABSIGNKENTS, '20

UNITED SHOE MACHINERY CORPORATION, 01 FAG-1380!, JERSEY, A CORPORA-'IION OF NEW JERSEY nannmrn mncma Original R0. 1,758,030, dated 1117 18,1980, lerlll I0- MA IO, filed October 14; 1828. Application 1'01 reissuefled August I, 19 81. lerlal llo. 554,791.

This invention relates to an improved machine adapted for use in themanufacture of wooden heels of the type employed in com lustratedmachine is particularly applicable to the function of breast surfacing aheel blank of the so-called Cuban type; 5

Cuban heels, under modern practice, are characterized usually by breastsurfaces or grooves which are so formed that'fwhen the heel blank isviewed from the side the vertical ed es of the blank formed byjthe'junc' ture o the sides and breast surfaces 1 a substantiallystraight line or stralg I 5 h f 11 edge Heels of t is t o owing $111. orbody, are covered with leather, cloth, celluloid or other suitablematerials to present a desired appearance.

esthetic or ornamental appearance, Usualrleyi these outer coverings areadhesively seen to the wooden heel body or in certain instances by theemployment of tacks or other suitable fasteners. Gonsiderable diflicultyhas been encountered in Permanently securing the meeting ed es 0 suchcoverings to the heel body. ,It requently happens that the coveringmaterial becomes loosened from a the body and presents an undesirableappearance or renders the heel'unsuitable for further use. 1

.In accordance with-the present infintion, a machine is provided whichproduces a verticalgroove or slot in the breast surface of a 0 heelblank, which extends from the heel seat t0. the lower-or tread surfaceof the heel blank and is disposed in substantially the'centcr'of thebreast surface. By the provisiii'uof this roove or slot the coveringmaterial, which is applied'around the heel blank, may have the adjoiningedges or ends thereof forced or tucked into said groovefor the purposeof positively retaining the covering material 1n a tautor stretchedcondition around the r 7 heel blank but without liability of undue 8e"-aration of the covering from the heel blan It is a primary object of thepresent inven- ,tion to provide a machine which will in one operationform the breast surface of a heel blank and also operate to form thevertically extending cover receiving slot in said breast ootwear and theilpresent surface, these operationsbeing quickly'effected .with a veryconsidera 1e saving in manufacturing costs as compared with preemployedfor Fig. 2 is a vertical sectional view taken throughthe machine on theplane indicated by the line 2-2 of Fig. 1;

Fig. 3 is a top plan viewof the machine on a somewhat enlarged scale, ascompared to Fig. 1, and discloses more particularly the ing and groovingcutters employed in connection with the machine;

Fig. 4 is a vertical sectional view disclosing mo're articularlytheclamping devices employ for retaining a heel blank in anapplied'position on the work support of the machine when such heel blankis engaged with saidcutters;

Fig. 5 is a perspective view of a heel blank after being operated onbythe cutter of the machine; and

Fig. 6 is a horizontal sectional view taken through a completed heelhaving a covering thereon.

Referring more particularly to the drawings, the numeral 1 designatesthe metallic base of the machine and'upon the upper end of this, basethere is mounted a circular, horizontally disposed work support or table2,

which is adapted to rotate a out a center axis provided by an upstandingTo efiect the support of t e table, the upper end of the base 1 isprovided with a vertically grooved surface 4 which receives thevertically ribbed surface 5 of a vertically adjustable stud or shaft 3.

bracket 8, the adjustment of said bracket being regulated by means of ascrew 7 which is received within a threaded gland 8 provided in thetopvof the base 1. The bracketfi is up 1- surface which receives alongitudinally ad ustable bearing member 10, said bearing provided witha horizontal groove 9 in its i member being provided with a central boreadapted for the reception of the lower end of the shaft 3, around whichthe table 2 rotates. The under side of the table 2 is provided with abeveled gear 11 arranged to mesh with a pinion 12, fixed upon a shorttransversely extending shaft 13, which is mounted in a bearing 14 formedin the member 10. The outer end of the shaft 13 is equipped with asprocket 15, around which passes an endless chain 16. This chain is alsopassed over a drive sprocket carried by a speed reduction unit 17 whichis mounted on the base 1. Power is imparted to the reduction unit bymeans of a motor 18, which is equipped with a drive belt 19.. It will beseen that the operation of the motor 18 will effect the rotation of thetable 2 at a desired rate of speed. Moreover, through the provision ofthe adjustable bracket 6 and thebearing 10 the table may be moved tosecure a desired operating position with respect to .cutting devices tobe hereinafter more fully described.

Arranged upon the upper surfaces of the table 2 are sets of heelclamping devices which are used to retain heel blanks 20 in secureconnection with the table. Each set of these devices consists of ananchor plate 21 and a clamping block 22. Each plate 21 rests flatly uponthe upper surface of the table and is pivotally connected thereto as at23, the plate being provided with an upturned vertically arranged rest24 against which the tread surface of a heel blank is placed, as shownin Fig. 3, the rest 24- i s preferably corrugated or Lserrated on oneside thereof 'to more securely bearings 28 provided in. the block 22.

grip the heel blank. The horizontal portion of each plate 21 is providedwith an arcuate slot 25, and a cooperating clamping screw 26 is carriedbv the table 2 and arranged within the slot 25. This constructionpermits the clamping plate to beadjusted so as to hold a heel blank at adesired operating angle in connefiaion with the peripheral portion ofthe ta e 2.

The clamping block 22 isfirmly secured to the upper surface of the tableand is spaced from the complemental anchor plate 21. Each of theseblocks is provided with a bolt or pin 27 which is slidably rece vedwithin The front or heel engaging end of the bolt or pin is sharpened asat 29 so that the pinwill more securely engage the block to hold thelatter in an applied position. A coil spring 30 sur-- rounds each pinand tendsto move the latter longitudinally backward.- Carried by eachblock is an angular. lever or arm 31. the outer portion of which.engages the rear end ofthe pin 27. The intermediate portion of each ofthe levers or arms 31 is provided with a roller 32. which is so disposeda to engage with the under surface of a cam plate 33 which is carried bythe upper end of the shaft 3 and is arranged in a horizontal plane abovethe table 2. The plate 33 is of segmental form and is so disposed thatwhen theheel blocks or blanks 20 are engaged with the machine cuttersthe rollers 32 of the levers 31 will be in engagement with the undersurface of the plate 33. This forces the levers 31 downwardly, againstthe resistance of the springs 30, with the resultthat the bolts or pins27 are projected forwardly into biting or frictional holding engagementwith the heel blanks, holding the latter stationary while the same arebeing acted u on by the various cutters of the machine. Al er the heelblanks have been moved past the cutters,-the levers or arms are removedfrom engagement with the 53am plate, with the result that the spring 30ma forcethe bolts 27 rearwardly and away rom the heel blanks. The heelblanks then contact with a resilient ejecting spring '34 carried'by theplate 33, and this spring serves to wipe or remove the finished blocksfrom. the table by a purely automatic operation; The blanks usually fallinto a bin or hopper, after droppin from the table, so that they can beconveniently collected. The only manual function involved. is to placethe blocks upon the table 2 between the clamping devices before thelatter engage with the cam plate.

The breasting of the heel blanks is accomplished by means of a cutter35, illustrated as a barrel saw. This cutter is carried by the outer endof a horizontally .journaled shaft 36,. driven from any suitable sourceof power. The cutter is arranged immediately contiguous to theperipheral portion of the table 2, as shown in Figs. 1 and 3, and

plate 33 so that when the heel blank is pre-.

sented to the cutter 35 it is rigidly held so that the cutter mayoperate effectively thereon. ,It shouldbe observed that the table 2rotates in a horizontal plane about the axis of the shaft 3 and, also,the cutter 35 revolves about the axis of the shaft 36. Due to thisarrangement. the breast surface, or, as it is ordinarily called, thegroove produced upon the heel blank is transversely concave andvertically convex, that is to say, when the heelblank is removed from amachine and arranged in a normal position, horizontal sections throughsaid heel blank will disclose that the breast surface is concave,whereas vertical sections taken through the heel blank will disclosethat said heel surface is slightly convex; The concavity is produced bythe cylindrical cutter, whereas the convexity is produced by therotation of the work support while the heel blank is being moved pastthe cutter. This compound curvature, in connection with the duces astraight lineappearance at the junc ture of the breast surface of theheel blank with the side surfaces. This straight edge effect is desiredparticularly in the Cuban type of heels. heels of this kind have beenproducedhereto-e fore and that machines have been designed to accomplishthe eflect, and therefore do not claim such a machine broadly as mypresent invention but merely in combination with certain other featuresto be now described.

As reviously stated, it istdesirable in the manu acture of wooden heelblanks to provide means'for permittin the secure association ofornamental coverings to the wooden body of the heel blank to produce apermanent and durable heel construction.. One

method of securing this result is to provide a longitudinally extendinggroove or slot 38 in the breast surface of the heel blank which extendsfromv the :heel seat surface of the blank to the tread surface thereofand which is arranged centrally of the-heel surface.

The cover39 which is placed around the heel blank or body has itsadjoining ends forced i there is into the slot 38 and therebyfrictionally, as well as adhesively, secured therein. 1 Heretofore ithas been customary to separately finish the breasting operation and theslotting operation. In the present machine both of these operations arecooperatively combined, which produces a marked economy in themanufacture ofheels of this type.

To produce the slot 38 in the heel blank, provided a horizontallyarranged circular saw or cutter '40. which is mounted for rotation in ahorizontal plane immediately adjacent to the peripheral portion of thein the heel blank.

table 2 and the cam plate 33. The horizontal plane of the saw is such asto cause the teeth of the saw to engage with the central portion of thebreast surfaceof-a heel blank supported by the'ta'ble 2 while such heelblank is clamped by the action of .the cam plate 33.

Thesaw or cutter is supported for rotation by the vertically extendingshaft, 41 of a motor 42. This motor is carried by a bracket 43adjustably mounted upon a horizontal ledge 44 formed with the base 1. Ahorizontal screw 45 is utilized for the purpose of adjusting the. sawtoward and away from the peripheral portion ofthe table 2, therebycontrolling the depth of the groove produced Similarly, a vertical screw46 is utilized for the purpose of adjusting the motor 42 vertically onits supporting bracket 43. By this adjustment the horizontal plane ofoperation of the saw maybe located so that the same may be properlycentered with respect to the heel blank. It will be understood that theheel blanks are I am aware of the fact that of different sizes and it istherefore necessary to provide these adjustments in order to I adapt themachine to heel blanks of allkinds. finally curved sides of the heelblank pro In view of the foregoing, it will be seen that the presentinvention provides a heel breasting machine by means of which both thebreasting or grooving and the slotting opera tions are carried out ineach cycle of'operation of the machine. This avoids the necessity ofutilizing two machines and, furthermore, provides for economy as wellas'increased production in heel manufacture.

Having described my invention, what I claim as newand desire to. secureby Letters Patent of the United States is: 1. In a heel breastinmachine, a base, a table rotatably mount in connection with saidbase,means, for rotating said table, a cylindrical cutter carried by saidbase and mounted for rotation about an axis disposed perpendicularly tothe axisof the table, a clamping device on said table adjacent to theperipheral edge thereof for supporting a heelblank in connection withsaid base ad'acent to the peripheral portion of the ta le and arrangedto engage with the heel blank as the latter rotates with the table pastsaid cutter, a horizontally disposed slotting cutter carried by saidbase and adapted to engage with said heel blank, and means operatingupon said clamping device to hold the latter in clamping engagement withsaid heel blanks while the latter are in engage.- ment with both of saidcutters.

2. In a heel breasting machine, a revolving work supporting table,a-work holder arranged on said table and adapted to retain a heel blankadjacent to the outer edge of the table, a cylindrical cutter mountedfor rotation independently of said table for rotation about an axisdisposed perpendicularly to the axis of the table, a mountedindependently of said table and disposed adjacent tothe periphery of thelatter for rotation about an axis disposed parallel to the axis of thetable, and'means coslotting cutter operative with said work holder forretain- 4 cutter revolving about an axis disposed sub- 'stantiallyperpendicularly to the axis of the table, a second cutter arranged forrotation in a horizontal plane adjacent to the peripheral edge of saidtable, and work holders'arranged on said table adjacent to the outeredge thereof and adapted to retain heel blanks in fixed positions so asto engage said cutters during the rotation of the table.

4. A machine of the character described, comprising a table mounted forrotation in a horizontal plane, a frame supporting said table, means forrotating said table, a cylin- (lri'cal cutter mountedon said frameindependently of said table and located adjacent to the periphery of thetable, said cutter being provided with cutting teeth arranged forrotation in a plane perpendicular to the plane of rotation of the table,a second cut-" ter mounted upon said frame independently of said tableand dis osed adjacent to the periphery of the tab e, said second cutterbeing mounted for rotation in a plane parallel with that of the table,means for rotating said cutters, and heel blank clamping devices carriedbv said table and arran ed to present heel blanks to the cutting teet ofsaid cutters during the rotation of the table.

5. A machine of the character described, comprising a frame, a worksupport mounted on said frame for rotation in a horizontal plane, heelblank clamps for securing heel. blanks in an operative position uponsaid support adjacent to the peripheral edge thereof, a cylindricalcutter having the cutting teeth arranged for rotation in a verticalplane and in the path of movement of the heel blanks carriedbv saidsupport, a circular saw arranged in a-horizontal plane carried by saidframe adjacent to said support to engage with the heel blanks carriedthereby, and means admitting of relative adjustment between said tableand cutters in both vertical and horizontal directions.

6. A machine of the character described, comprising a frame, a worksupporting table rotatably mounted on a vertical axis in connection withsaid frame, means for adjusting the operating positions of said tablehorizontally andvertically with respect to said frame, drive mechanismfor rotating said table, a cylindrical cutter rotatably mounted on saidframe independently of said table and disposed adjacent to theperipheral edge of said table, a flat horizontab saw rotatably mountedon said frame independ ently "of said table and contiguous to theperipheral edge of the latter, blank clamping devices carried by saidtable for receiving heel blanks to be presented to said out ters. andautomatically operating means for causing said devices to exert agripping action on'said heel blanks during engagement of the latter withboth of said cutters. 7. In a machine of the class described, a

I rotatable table, an axial support therefor,

work holding means on the upper surface of said table including ananchor section, a gripping section spaced from said anchor sec-J 'tion,said gripping section being provided with a sliding plunger between theouter ends of which and said anchor section the heel blank to be clampedis placed, spring means acting on said'plunger to normally space the thelatter about its ivotal mounting whereby the plunger is orced intoengagement with the heel blank, a vertically disposed cylindrical cutterarranged to engage with said heel blank while the latter is clampedbetween the anchor and gripping sections of the table, and ahorizontally disposed cutter arranged to engage with said heel blank,

while the latter 1s clamped in connection with the table.

8. In a heel breasting machine, a heel blank carrier, a breast groovingtool and a breast slotting tool, and means for driving said carrier forpresenting a heel blank in the carrier to the tools in succession toform a groove and a slot in predetermined relation in the breast of saidheel blank.

9. A machine of the ch i i cter having a frame, a rotary cutter arrangedto form a desired breast surface on a heel blank, a work carrying memberarranged to hold a heel blank with its breast surface toward the cutter,a slotting cutter located adjacent to the work carrying member andarranged to form a slot running heightwise in the breast surface of aheel blank in the work carrying member, means for efiecting relativemove.- ment, heightwise of the heel blank, between the work carrier andthe said cutters, and means for relatively adjusting the cutters andwork carrier to locate the breast groove properly in the heel blank, andto position the slot properly in the breast groove.

10. A machine of the character described having a frame, a rotary cutterarranged to form a desired breast surface on a heel blank.

a work carrying member arranged to holdv a heel plank with its breastsurface toward the cutter, a slotting cutter located adjacent to thework carrying member and arranged to the heel blank and to position theslot properly in the breast groove formed in the heel blank,and meanscooperating with the work carrying member to keep the Work carryingmember in engagement with a heel blank while the heel blank is presentedsuccessively to the 'said cutters.

11. In a heel breasting machine, a base, a

table rotatably mounted on said base, means for rotating said table,acutter carried by said base and mounted for rotation about an axis, a,clamping device on said table adjacent described 'form a slotrunningheightwise in the breast to the eripheral edge thereof for supporting aheel lank adjacent to the ripheral por-, tion of the table and arrangeiito en age the heel blank as the latter rotates with e table pastsaidcutter, a slotting cutter carried by said base and adapted to engagesaid heel blank, and means operating upon said clampa, ing device tohold the latter in clam ing engagement with said heel blanks w ile theatter are in engagement with both of said cutters.

12. In a heel breasting machine, a revolving work supporting table, awork holder arranged on said table and adapted to retain a heel blankadjacent to the outer edge of the table, a breast forming cutter mountedfor rotation adjacent to the outer edgeof the table, a slotting cuttermounted adjacent to the I periphery of the table for rotation about an:0 axis parallel 'to the axis of the table, and

means for retaining the work holder in engagement with a blank while thelatter is presented successively to said cutters.

13. Amachine of the character described, comprising a frame, a worksupfporting table rotatably mounted in said rame, drive mechanism forrotating said-table, a cutter rotatabl mounted on said frame anddisposed a jacent to the peripheral edge of said table, a saw rotatablymounted on said frame contiguous to the peripheral edge of the table,means for adjusting the position of the table relatively to thecutterand saw blank clamping devices carried by said table for receiving heelblanks to be presented to 'said' cutters, and automatically operatingmeans for causing said devices to exert a gripping action on said heelblanks during engagement of the latter with both'of said cutters.

40 In testimony whereof I have signed my nameto this specification.

' FRED AUSTIN DAY.

